<template>
  <el-container class="home_container">
    <!-- 头部区 -->
    <el-header>
      <div>
        <img src="@/assets/tommy.jpg"  height="61px" width="56px" class="timg"/>
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button></el-header
    >
    <!-- 主体区 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCallapse?'64px':'200px'">
          <div class="toggle-button" @click="toggleCollapse">
              |||
          </div>
        <!-- 侧边栏菜单区 -->
        <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#409EFF"
          unique-opened
          :collapse="isCallapse"
          :collapse-transition="false"
          :router="true"
          :default-active="activePath"
        >
          <!-- 一级菜单 -->
          <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
            <!-- 一级菜单模板区 -->
            <template slot="title">
              <!-- 图标 -->
              <i :class="iconObj[item.id]"></i>
              <!-- 文本 -->
              <span>{{item.authName}}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item :index="'/'+subitem.path" v-for="subitem in item.children"
             :key="subitem.id"
             @click="saveNavState('/'+subitem.path)">
              <!-- 图标 -->
              <i class="el-icon-menu"></i>
              <!-- 文本 -->
              <span>{{subitem.authName}}</span>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主体 -->
      <el-main><router-view/></el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  name: "Home",
  components: {},
  directives: {},
  data() {
    return {
        //左侧菜单数据
        menulist:[],
        iconObj:{
            125:'iconfont icon-user',
            103:'iconfont icon-tijikongjian',
            101:'iconfont icon-shangpin',
            102:'iconfont icon-danju',
            145:'iconfont icon-baobiao',
        },
        //是否折叠
        isCallapse:false,
        // 被激活的地址
        activePath:'',



    };
  },
  mounted() {},
  created() {
      this.getMenuList()
      this.activePath=window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout() {
      window.sessionStorage.clear();
      this.$router.push("/login");
    },
    async getMenuList(){
        const {data:res}=await this.$http.get('menus')
        if (res.meta.status!==200) {
            return this.$message.error(res.meta.msg)
        }
        this.menulist=res.data
        console.log(res)
    },
    //点击按钮实现菜单的折叠与展开
    toggleCollapse(){
        this.isCallapse=!this.isCallapse
    },
    saveNavState(activePath){
        window.sessionStorage.setItem('activePath',activePath)
        this.activePath=activePath
    },
  },
};
</script>

<style lang="less" scoped>
.home_container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}
.el-aside { 
  background-color: #333744;
  .el-menu{
      border-right: none;
  }
}
.el-main {
  background-color: #eaedf1;
}
.iconfont{
    margin-right: 10px;
}
.toggle-button{
    background-color: #4a5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;

}
.timg{
  border-radius: 50%;
}
</style>